Valve mechanism for internal-combustion motors.



- L. P. SAVAGE. 'VALYE MECHANISM FOR INTERNAL COMBUSTION MOTOR S.

' v APPLICATIbN FILED FEB. 7. I916.

Patented J an. 16, 1917 2 SHEETS-SHEET l- I MM 260061 6 w r L. P. SAVAGE. =VALV,E MECHANISM FOR INTERNAL COMBUSTION MOTORS.

' 7 APPLICATION FILED FEB.7.1 .916. 1,213,o27.

Patented Jan.;16,1917.

2 SHEETS-SHEET 2.

I. J Jaz/af WU a co attozmzq i hea set.

' PATE T LOUIS P. SAVAGE, OF LAPORTE, INDIANA.

Specification of Letters Patent.

Application filed February '7, 1916. Serial No. 76,732.

OFFICE.

Patented-Jan.16, 191 7.

- Z'ocll whom it may concern Be it known that I, Louis P. SAVAGE, a

citizen of the United States, residin at Laporte, in the county of Laporte and btate of'ljhdiana, nave inventednew and useful improvements in Valve Mechanisms for Internal-Cornbustion Motors, of which the following is a specification.

This inventionjrelates to valve mechanism for-internal combustion motors, and one of itsohj'ects is to provide a valve mechanism which is arranged externally of the enggine y accessible for renewal or repairs, and so as to reduce the amount of carbonization withthe firing chamber or combustion space, diie' tothe presence of an increased quantity of oilfllemployedin the lubrication of internally "arranged valve devices.

A further object of the invention. is to provide reciprocating slide valves which are operas- 1 in timed accord by eccentrics from the engine shaft to control the intake and exhaust; and each of which consists of a pair' of telescopic members arranged one within the other,and having ports movable iiito and out or" coincidence for valve opening and closing actions, whereby aisimple, reliable, positive and eiiicient type of valve will be vproduced.

A" still further'ohject ofthe invention is I td'pro'vide a valve of the character described dtwiccsin different positions.

in which the inner valve member also serves as a lubricating device for supplying oil to the working parts of the valve, and which lubricating device may be supplied with oil from the oil circulating system of the engine}, a.

The invention consists of the features of construction, combination and arrangement o t parts herein fully described and claimed, reference. being bad to. the aceompanying drawings in which:-- 1

Figure .l is a side view of a cylinder of an internal combustion engine embodying my invention, showing the intake and eX- h: valve devices and the means for opzinc cylinder taken on and showing the valve Fig. l is ahorizontal transverse section on the line Figs. 5 and G are detail lions through the er the line of the valves 5M5 of Fig. 2.

views oi the members oi one of the valve devices separated from each other.

Referring to the drawings, 1 designates an engine cylinder, which is provided with intake and exhaust ports 3- and 4 and externally arranged intake and exhaust valve casings 5 and 6, arranged in line with said intake and exhaust ports 3 and 4 and at diametrically opposite sides of the cylinder, the saidca'sings being provided with a primary admissionport 7 and a final discharge port 8, arranged in alinement with the ports 3 and 4, for connection with the inlet and exhaust manifolds. As shownin the present instance, the cylinder 1 is closed at its top by a removable head 9, which may be bolted or otherwise detaohably secured thereto, which head is provided with lateral extensions 10 and 11 which close the upper ends of the valve casing. I The parts described are suitably hollowed to form a water jacketing space 1'2 surrounding the cylinder body proper and the valve casings to keepthesame cool, as will be readily understood.

The valve casings are similar in construction to eachother, and each comprises a circular body portion 13 which is integral with the cylinder, and joined to the body of the/cylinder by a narrow intervening neck portion,-" which is formed to provide-a flat seat face 15 and grooved guideways l6 and 17,

Arranged within the respective casings are intake and exhaust valves 18 and 19 which are similar in construction to each other, so that a description of one will suffice for both, saidvalvesb'eing composed of parts which areoperated from the crank shaft 20 of the engine as hereinafter fully described. Each valve comprises an outer tubular member 21 provided with diametrically' arranged ports or passages 22 for cooperation with the ports 3 and 7, and am inner hollow member 24' provided with a port or passage 25. The valve member 21, which forms a casing for the valve member 24, and which valve members slide or reciprocate in opposite directions in unison, is provided at its inner side with aflattened seat surface 26 to engage the seat 15 and lateral guide flanges 27 to engage the grooved guideways 16 and 17, whereby the outer valve member is fitted to slide in a,

directly rectilinear path. Upon the flattoned seat face of this valve member are fife-- cesses "in which are fitted spring packing strips 28 which ride in contact with the seat face 15 and operate to prevent leakage or motive fluid or oil. The valve members are provided at their lower ends with wrist pins 29, and the valve members of the intake valve device are connected with eccentrics 3t) and 31 on the crank shafts by connecting rods 32 and 33, while the wrist pins of the valve members of the exhaust valve device are connected with eccentrics 34 and 35 on the crank shaft by connecting rods 36 and 37, said eccentrics being arranged to properly time the movements of the respecti e valves and valve members for the intake and exhaust actions at proper periods in the cycle of operation of the engine. The inner valve members of the valve devices formluln'icated.

- that the intake and exhaust valves will be operated in timed accord by eccentrics. as

will also the members at each valve. to bring the ports in coincidence at proper intervals in the cycle of operation of the engine for the admission of the fuel charge and subsequent discharge of the spent gases. It will be seen that in the operation of each valve the members thereof in moving in opposite directions will shift their cooperating ports toward or away from each other. and that when the ports of the valve members are in register they will also coincide with the ports of the valve casing and cylinder for the admission of the charge or the exhaust ot' the spent gases, as the case may be. In the movement of the elements of each valve, oil will be forced between the surfaces of the valve mcmbersaml under the force teed action of the lubricating system, whereby through the movement of the parts of the valve the oil will be distributed to the working surfaces oi the valve, whereby the same will be kept properly lubricated.

It will be observed that the described a rrangement. of the valve mechanism provides for the ready application and removal of the valves in assemblage, I cleaning and repairs, and for the arrangement of all parts of the valve upon the cxtcrior of the cylinder, thus 'neventing the part of the oil circulating system 1 disassembla passage of animdue amount of oil to the interior of the cylinder and the co uent burning of the same and increased our n1- zation resulting therefrom. Hence carbonization will be retarded, with increased eificiency of the engine, while, as the valves are of a type and so arranged to protect the same from carbon deposit, no loss of coin--- combustion motors, the combination with a cylinder haying a port therein, of a valve for cooperation with said port, said valve comprising sliding, telescopically connected parts having cooperating ports, the inner valve part consisting of a hollow body forming a reservoir, and means for suppl ing oil through said reservoir to the wor ing surfaces of the valve parts.-

:2. In a valve mechanism for internal combustion motors, a cylinder having a. port therein. a casing provided with a. coiiperating port, telescopically connected valve members operating in said cylinder, one of said valve members forming an oil reservoir, means for simultaneously reciprocating said valve parts in opposite directions, and means for supplying Oll under pressure to said oil reservoir and from thence to the surfaces of the valve members. v

3. In a valve mechanism for internal combustion motors, a cylinder having a, port therein, a casing upon the exterior of said cylinder, a valve in said casing composed of sliding, telescopically connected parts having cooperatin ports, the inner valve part comprising a hollow body forming an oil reservoir having an oil discharge port therein, means for supplying oil to said reservoir. and means for sin'mltaneously reciprocating the valve members in opposite direct ons mumson.

In. testimon MARIE 'SoHINnLEn, W. T. Cna 1G.

and appreciated without a. furwhereof I ailix my signature 

